Individual holder
KEMPF JAMES J
US·40 granted patents·2 pending applications·1,282 citations·filing 2004–2024
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
42 records- 0199US9513080B1Reverse style crossbowKEMPF JAMES J·Filed 2016·Granted Dec 6, 2016·70 cites·16 claims
- 0299US9243861B1Shooting bow with pulleysKEMPF JAMES J·Filed 2015·Granted Jan 26, 2016·70 cites·20 claims
- 0398US10458743B1Crossbow with built in cocking deviceKEMPF JAMES J·Filed 2018·Granted Oct 29, 2019·41 cites·15 claims
- 0498US9829268B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2017·Granted Nov 28, 2017·50 cites·10 claims
- 0598US9234719B1Shooting bow with pulleysKEMPF JAMES J·Filed 2014·Granted Jan 12, 2016·70 cites·23 claims
- 0698US7836871B2Powerstroke crossbowKEMPF JAMES J·Filed 2007·Granted Nov 23, 2010·91 cites·20 claims
- 0797US10048036B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2017·Granted Aug 14, 2018·43 cites·17 claims
- 0897US9551544B1Crossbow lock mechanismKEMPF JAMES J·Filed 2015·Granted Jan 24, 2017·30 cites·12 claims
- 0997US9377267B1Shooting bow with transitional modulesKEMPF JAMES J·Filed 2014·Granted Jun 28, 2016·78 cites·17 claims
- 1097US8104461B2Crossbow cocking assemblyKEMPF JAMES J·Filed 2007·Granted Jan 31, 2012·64 cites·20 claims
- 1197US7328693B2Reverse draw technology archeryKEMPF JAMES J·Filed 2004·Granted Feb 12, 2008·104 cites·3 claims
- 1296US10139191B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2018·Granted Nov 27, 2018·21 cites·6 claims
- 1396US9759509B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2017·Granted Sep 12, 2017·36 cites·14 claims
- 1495US10690436B1Crossbow with integral cocking and a moving latch assemblyKEMPF JAMES J·Filed 2019·Granted Jun 23, 2020·26 cites·14 claims
- 1595US10458742B1Projectile launching device with self-timing and without cam leanKEMPF JAMES J·Filed 2018·Granted Oct 29, 2019·27 cites·14 claims
- 1695US10359254B1Crossbow with built in electric cockingKEMPF JAMES J·Filed 2018·Granted Jul 23, 2019·28 cites·14 claims
- 1795US10018442B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2017·Granted Jul 10, 2018·21 cites·4 claims
- 1895US9255754B1Crossbow lock mechanismKEMPF JAMES J·Filed 2014·Granted Feb 9, 2016·42 cites·12 claims
- 1995US7708001B2BowKEMPF JAMES J·Filed 2006·Granted May 4, 2010·50 cites·13 claims
- 2094US10012468B1Self-centering anti-dry fire device for a crossbowKEMPF JAMES J·Filed 2017·Granted Jul 3, 2018·24 cites·15 claims
- 2191US12247803B1Crossbow with inertia brake cocking deviceKEMPF JAMES J·Filed 2023·Granted Mar 11, 2025·7 cites·12 claims
- 2291US12215954B1Cranking mechanismKEMPF JAMES J·Filed 2022·Granted Feb 4, 2025·7 cites·25 claims
- 2391US8899218B2Shooting bowKEMPF JAMES J·Filed 2012·Granted Dec 2, 2014·29 cites·15 claims
- 2491US7174884B2Trigger assemblyKEMPF JAMES J·Filed 2005·Granted Feb 13, 2007·108 cites·19 claims
- 2590US8770178B2Shooting bowKEMPF JAMES J·Filed 2011·Granted Jul 8, 2014·25 cites·6 claims
- 2690US8505527B2Archery quiver attachmentKEMPF JAMES J·Filed 2010·Granted Aug 13, 2013·26 cites·7 claims
- 2789US12379180B1Crossbow with de-cocking crank mechanism having sprocketsKEMPF JAMES J·Filed 2023·Granted Aug 5, 2025·5 cites·3 claims
- 2889US9291421B1Assault rifle style mainframe barrel for a crossbowKEMPF JAMES J·Filed 2014·Granted Mar 22, 2016·23 cites·18 claims
- 2985US9759510B1Vibration dampening limb boltKEMPF JAMES J·Filed 2016·Granted Sep 12, 2017·12 cites·14 claims
- 3083US10215522B1Adjustable trigger pull for a crossbowKEMPF JAMES J·Filed 2017·Granted Feb 26, 2019·10 cites·12 claims
- 3183US9372045B1Adjustable multi-level archery quiverKEMPF JAMES J·Filed 2015·Granted Jun 21, 2016·11 cites·11 claims
- 3282US10408560B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2018·Granted Sep 10, 2019·6 cites·2 claims
- 3378US9038619B1Vibration dampened barrel for a crossbowKEMPF JAMES J·Filed 2014·Granted May 26, 2015·11 cites·11 claims
- 3474US10126089B1Shooting bow with reduced limb travelKEMPF JAMES J·Filed 2018·Granted Nov 13, 2018·4 cites·5 claims
- 3573US10514227B1Multi-draw weight archery bow with cable timingKEMPF JAMES J·Filed 2018·Granted Dec 24, 2019·4 cites·3 claims
- 3664US11365950B1Spring loaded accessory mount and meansKEMPF JAMES J·Filed 2020·Granted Jun 21, 2022·1 cites·16 claims
- 3762US10066894B1Silent safety for a crossbowKEMPF JAMES J·Filed 2017·Granted Sep 4, 2018·3 cites·12 claims
- 3860USRE45330EArchery quiver attachmentKEMPF JAMES J·Filed 2013·Granted Jan 13, 2015·3 cites·7 claims
- 3953US2025130007A1Cranking MechanismKEMPF JAMES J·Filed 2024·Application pending·0 cites
- 4052US12449229B1Bottom chamber firing revolverKEMPF JAMES J·Filed 2023·Granted Oct 21, 2025·0 cites·5 claims
- 4152US2009194086A1Shooting bowKEMPF JAMES J·Filed 2009·Application pending·0 cites
- 4248US9696107B1Multi-element one piece crossbow frameKEMPF JAMES J·Filed 2015·Granted Jul 4, 2017·1 cites·25 claims
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